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From the Manufacturer

Power to spare Here's a wireless mouse that keeps on running—not just month after month, but for years*. The Marathon Mouse M705 uses less than half the battery power of comparable wireless mice, so you can keep powering through the task at hand without missing a beat.

Tiny Logitech Unifying receiver One plug-and-forget USB receiver stays in your notebook and let you connect up to six Unifying- compatible devices like keyboards and mice. To learn more about Logitech Unifying receiver click here >

Compare

Connection StrengthThe higher the signal strength, the more reliable your connection will be. Especially important in busy wireless environments like airports.

2.4 GHz

2.4 GHz

2.4 GHz

2.4 GHz

2.4 GHz

2.4 GHz

Tracking Quality Look for smooth, precise cursor control. The higher the quality, the easier it is to navigate documents and web pages. The best also work on more surfaces, including glass.

Laser tracking

Laser tracking

Also works on glass

Laser tracking

Laser tracking

Also works on glass

Power Management Stay more productive and eliminate hassles with longer periods between battery changes or a rechargeable mouse.

2 AA batteries (15 months max. battery life)

2 AA batteries (3 years max. battery life)

2 AA batteries (6 months max. battery life)

1 AA battery (12 months max. battery life)

2 AA batteries (2 years max. battery life)

Rechargeable

Wireless Receiver The receiver stays in your computer for cordless mouse control. The smaller the receiver (from standard to nano size), the more convenient it is. The Unifying receiver also lets you add compatible devices like a wireless keyboard.

Unifying receiver for up to 6 compatible wireless devices

Unifying receiver for up to 6 compatible wireless devices

Unifying receiver for up to 6 compatible wireless devices

Nano size receiver

Unifying receiver for up to 6 compatible wireless devices

Unifying receiver for up to 6 compatible wireless devices

Scrolling PerformanceScroll through long documents and web pages without having to drag the scroll bar. Performance ranges from fast to hyper-fast.

Create The Combo That Works For You

Logitech has a range of products that you can connect via a single, tiny receiver you leave plugged into your notebook. Mix. Match. Unify. Now you can create your perfect laptop workstation, wherever you work. For a full list of Unifying-compatible peripherals, click here>

Logitech Wireless Desktop MK710 This low-profile wireless keyboard features Logitech Incurve keys, which are so comfortable you'd think they were custom-made to fit your fingers, and a cushioned palm rest. Up to three-year battery life for both keyboard and mouse. Works with unifying receiver.

Logitech Wireless Keyboard K350 With its distinctive Wave design and Constant Curve layout, this keyboard guides your hands into just the right position. You'll type with ease and confidence, but without having to re-learn typing on an unfamiliar layout. Works with unifying receiver.

Logitech Anywhere Mouse MX This compact wireless laser mouse gives you the freedom to work anywhere, on virtually any surface, even on glass desks and tables. Works with Logitech Unifying receiver.

Logitech Performance Mouse MX This full-size wireless laser mouse gives you the freedom to work anywhere, on virtually any surface, even on glass desks and tables. Works with Logitech Unifying receiver.

Logitech Notebook Kit MK605 This notebook kit includes a wireless laser mouse, a pivoting display riser, and a compact wireless keyboard, so you can use your notebook your way. Comes with a pre-paired Unifying receiver, connecting both the included mouse and keyboard.

Logitech Wireless Number Pad N305 This number pad gives you convenient number entry for notebooks. Up to three years of battery life and a wireless Unifying receiver you leave plugged in means it's always ready. Works with all Unifying compatible devices.

Most Helpful Customer Reviews

This is a great mouse for reasons all stated in other reviews. However, some complaints I've seen about this mouse in other websites come from people who have not read the manual and missed some features this mouse offers that address their complaints.

You don't know what to do with the receiver when transporting your laptop?First, the mouse does have a compartment for the receiver. The receiver is tiny already, so most people will just leave it inserted in their laptops during transport. However if you wish to store it with the mouse, you can do so. It does not require you to take out the batteries themselves to store the receiver, but you do have to take the battery cover off to access the compartment.

The mouse is too heavy for you?The most awesome and rarely mentioned feature about the mouse is the ability to modify its weight and center of gravity by only using one AA battery instead of two. The reason this is so cool is because it gives you an option to lower the weight of the mouse if you think it is too heavy with 2 batteries (I thought so). You can also to change the way the weight feels in your hand by placing the battery in the slot closest to the center of the mouse or closer to the back of the mouse. Some people prefer the weight of the mouse to be on the back while others prefer it to be more centered. I left mine in the center.

How does it work with just one battery?If you notice, the two batteries in its compartment are used in parallel (both installed looking the same way), instead of 'in series' like most electronics do (going the opposite way). The mouse works on 1.5 volts instead of 3.0 volts like the usual 2 AA battery equipment would. This is what permits the 3 year battery time.Read more ›

I've used countless mice over the years. I've finally found the perfect mouse and this is it. I have large hands and my thumb has started to hurt a lot because my old mouse is too small and I have had to hold it using a claw grip. I went to Best Buy and tried out the different mice. For me, it came down to the Marathon versus the MX Performance. The Performance is a bit bigger and has a more sculpted area to rest your thumb which is a big plus in my book. It felt very comfortable in my hand. The Marathon is a bit smaller (though it is still quite heavy, which I like) and the thumb rest area is not nearly as pronounced or sculpted as the Performance. On the other hand, the Marathon has a THREE YEAR battery life! The Performance needs to be recharged every 30 days. Having to go through a bunch of batteries (or constantly recharge) is why I have stayed away from wireless mice all these years. But the Marathon took that excuse away.

I couldn't be happier. This is, hands down, the best mouse I have ever used.

It feels well made, not cheap and plasticky. It weighs quite a bit and feels substantial and sturdy.

The wireless reception is flawless. I have my USB receiver plugged into the bottom of a Dell monitor and the mouse is about 5 feet away and on a keyboard tray that is below the desk. The signal has to travel through a notebook computer. No problem. I don't play video games so I'm not that picky about lag, but I don't notice any lag in this mouse for my needs.

The unifying USB receiver is a great idea. I have both a wireless keyboard and a wireless mouse sharing a single unifying USB receiver, which is tiny by the way. That frees up a USB port on my notebook.

I've owned about 8-10 Logitech mice over the years, starting with their corded ball mouse, the last one in line being the M705. Well, I can tell you one thing for certain about Logitech - their quality has certainly degraded since the time I first started using them. This one & the 2 prior models before it, all died on me within a 1.5 year period of average use. Each time the problem was the same - the left click button would malfunction first and double click for each single click. This is followed by the right click button which too starts behaving erratically (provided you are still putting up with the left double click nonsense). A quick Google search will reveal that this is a problem that affects all Logitech mice since they all use the same rubbish MORON... sorry, OMRON micro-switches. These switches have a fundamentally flawed design which uses a crappy leaf spring & this is a well documented fact if you care to search around. You can of course take it apart & do a temp fix, but I can assure you the problem will return shortly. Otherwise an excellent mouse... such a terrible shame! My suggestion - look elsewhere (Microsoft would've been my fist choice were it not for their lack of customizable buttons).PS: Food for thought - is this on purpose (for the obvious reason)???!.

I've bought two of these mice because I love the control layout with the thumb buttons for forward and backwards and the programmable lower button. What I've not liked is that they eventually start double clicking on the most commonly used buttons. That's why I've bought two of them.

My second mouse had just started doing the double click thing and I was just about to start searching for a new non-Logitech and maybe non wireless mouse due to the repeated problem. Fortunately I searched the web and found ridiculously simple resolution to the double click problem:[...] (bottom of page 1 if it doesn't link directly to the post with the solution)

Worked like a charm! Now I need to point out that I live in CO and the weather is extremely dry year round so this might be more of a climatic problem than a universal but worth trying if you start having the double click problem. I give the mouse 4 stars since it's a great mouse but seems ridiculous that I'd have to do the static discharge fix every so often on it in the first place.